underfunded state

src/dexorder/contract/decimals.py

@@ -15,7 +15,7 @@ async def token_decimals(addr):
         try:
             decimals = await ERC20(addr).decimals()
         except CONTRACT_ERRORS:
-            log.warning(f'token {addr} has no decimals()')
+            log.debug(f'token {addr} has no decimals()')
             decimals = 0
         except Exception:
             log.debug(f'could not get token decimals for {addr}')

src/dexorder/order/orderstate.py

@@ -127,7 +127,7 @@ class Order:
         key = a if b is None else OrderKey(a, b)
         assert key not in Order.instances
         self.key = key
-        self.status: ElaboratedSwapOrderStatus = Order.order_statuses[key].copy()
+        self._status: ElaboratedSwapOrderStatus = Order.order_statuses[key].copy()
         self.pool_address: str = pool_address(self.status.order)
         self.tranche_keys = [TrancheKey(key.vault, key.order_index, i) for i in range(len(self.status.trancheStatus))]
         # flattenings of various static data
@@ -138,6 +138,14 @@ class Order:
         self.tranche_amounts = [t.fraction_of(self.amount) for t in self.order.tranches]
         Order.instances[self.key] = self
 
+    @property
+    def status(self):
+        return self._status
+
+    @status.setter
+    def status(self, v):
+        self._status = Order.order_statuses[self.key] = v
+
     @property
     def state(self):
         return self.status.state

src/dexorder/order/triggers.py

@@ -210,10 +210,10 @@ class Trigger:
 
 
 async def has_funds(tk: TrancheKey):
-    log.debug(f'has funds? {tk.vault}')
+    # log.debug(f'has funds? {tk.vault}')
     order = Order.of(tk)
     balances = vault_balances.get(tk.vault, {})
-    log.debug(f'balances {balances}')
+    # log.debug(f'balances {balances}')
     token_addr = order.status.order.tokenIn
     token_balance = balances.get(token_addr)
     log.debug(f'amount of {token_addr} = {token_balance}')
@@ -256,6 +256,7 @@ class BalanceTrigger (Trigger):
         self.order = Order.of(self.tk)
         self.vault_token = self.tk.vault, self.order.status.order.tokenIn
         BalanceTrigger.by_vault_token[self.vault_token].add(self)
+        self._value_changed()
         # log.debug(f'initializing Balance Trigger {id(self)} {tk} {value} {self.value}')
 
     async def update(self, balance):
@@ -268,6 +269,17 @@ class BalanceTrigger (Trigger):
         except (KeyError, ValueError):
             pass
 
+    def _value_changed(self):
+        ok = self.value
+        order = Order.of(self.tk)
+        old_state = order.status.state
+        if not ok and old_state == SwapOrderState.Open:
+            order.status = order.status.copy()
+            order.status.state = SwapOrderState.Underfunded
+        elif ok and old_state == SwapOrderState.Underfunded:
+            order.status = order.status.copy()
+            order.status.state = SwapOrderState.Open
+
 
 class TimeTrigger (Trigger):
 

src/dexorder/tokens.py

@@ -91,8 +91,9 @@ async def load_token(address: str) -> Optional[OldTokenDict]:
     try:
         decimals = await dec_prom
     except CONTRACT_ERRORS:
-        log.warning(f'token {address} has no decimals()')
+        log.info(f'token {address} has no decimals()')
         decimals = 0
+        return None  # we do not support coins that don't specify decimals.
     approved = False  # never approve new coins
     chain_id = current_chain.get().id
     symbol = await symbol_prom